2.
water for foodwater purificationflow regulationwater storage water supply water storage water supplyfisheries provision water conveyance cultural services water for energy

3.
Ecosystems are infrastructure – part of the “the stock of facilities, services and installations needed for the functioning of a society” Nature is part of the infrastructure portfolio of every country and every economy

8.
Understanding ecosystem indicatorsfor the nexus• Water for food – Agricultural water stress (cropland+irrigation vs. availability)• Water for energy – Disconnectivity-Wetland loss and river fragmentation, flow disruption by reservoirs• Water for nature – Environmental water stress (ecological requirement vs. availability)• Water for people – Human water stress (population vs. availability)8